Abstract

Threshold sensitivity was studied in six observers on one vertical and three horizontal lines running through an area in the nasal visual field of one eye which corresponds to the blind-spot region of the other eye. The test fields were squares of 1° angular subtense on a side and were presented for 0.04 sec. Thresholds were found to be lower in this region than at retinal points immediately outside, yielding a mean increase in sensitivity of approximately 0.25 log unit. The findings are discussed in regard to density and innervation of retinal elements, cortical representation, and the possibility of compensation for lack of sensitivity in the blind spot in order to maintain uniform brightness in an integrated binocular field of vision.

PDF Article

References

  • View by:
  • |
  • |

  1. M. J. Zigler and E. Wolf, Am. J. Psychol. 71, 186 (1958).
  2. E. Wolf and A. J. Morandi, J. Opt. Soc. Am. 52, 806 (1962).
  3. E. Wolf and M. J. Zigler, J. Opt. Soc. Am. 49, 394 (1959).
  4. J. A. Smith and F. L. Dimmick, Med. Res. Lab. 10, 174 (1951).
  5. S. D. DeGroot, J. M. Dodge, and J. A. Smith, Med. Res. Lab. 11, 11 (1952).
  6. J. Brøns, Acta Ophthalmol. Suppl. 17, 1 (1939).
  7. D. O. Herrington, The Visual Fields. A Textbook and Atlas of Clinical Perimetry (C. V. Mosby Company, St. Louis, Missouri, 1956).
  8. W. J. Crozier and A. H. Holway, J. Gen. Physiol. 22, 341, (1939).
  9. H. Piper, Z. Psychol. Physiol. Sinnesorgane 31, 161 (1903); 32, 98 (1903).
  10. W. J. Crozier and A. H. Holway, J. Gen. Physiol. 22, 361 (1939).
  11. R. J. Lythgoe and L. R. Tansley, J. Physiol. 91, 427 (1938).
  12. D. Katz, Gestalt Psychology, its Nature and Significance (Ronald Press Company, New York, 1950).
  13. G. A. Østerberg, Acta Ophthalm. Suppl. 6, 1 (1935).
  14. S. L. Polyak, The Retina (University of Chicago Press, Chicago, Illinois, 1941).
  15. L. L. Sloan, M. J. Ophthalmol 30, 705 (1947).

Brøns, J.

J. Brøns, Acta Ophthalmol. Suppl. 17, 1 (1939).

Crozier, W. J.

W. J. Crozier and A. H. Holway, J. Gen. Physiol. 22, 341, (1939).

W. J. Crozier and A. H. Holway, J. Gen. Physiol. 22, 361 (1939).

DeGroot, S. D.

S. D. DeGroot, J. M. Dodge, and J. A. Smith, Med. Res. Lab. 11, 11 (1952).

Dimmick, F. L.

J. A. Smith and F. L. Dimmick, Med. Res. Lab. 10, 174 (1951).

Dodge, J. M.

S. D. DeGroot, J. M. Dodge, and J. A. Smith, Med. Res. Lab. 11, 11 (1952).

Herrington, D. O.

D. O. Herrington, The Visual Fields. A Textbook and Atlas of Clinical Perimetry (C. V. Mosby Company, St. Louis, Missouri, 1956).

Holway, A. H.

W. J. Crozier and A. H. Holway, J. Gen. Physiol. 22, 341, (1939).

W. J. Crozier and A. H. Holway, J. Gen. Physiol. 22, 361 (1939).

Katz, D.

D. Katz, Gestalt Psychology, its Nature and Significance (Ronald Press Company, New York, 1950).

Lythgoe, R. J.

R. J. Lythgoe and L. R. Tansley, J. Physiol. 91, 427 (1938).

Morandi, A. J.

E. Wolf and A. J. Morandi, J. Opt. Soc. Am. 52, 806 (1962).

Østerberg, G. A.

G. A. Østerberg, Acta Ophthalm. Suppl. 6, 1 (1935).

Piper, H.

H. Piper, Z. Psychol. Physiol. Sinnesorgane 31, 161 (1903); 32, 98 (1903).

Polyak, S. L.

S. L. Polyak, The Retina (University of Chicago Press, Chicago, Illinois, 1941).

Sloan, L. L.

L. L. Sloan, M. J. Ophthalmol 30, 705 (1947).

Smith, J. A.

S. D. DeGroot, J. M. Dodge, and J. A. Smith, Med. Res. Lab. 11, 11 (1952).

J. A. Smith and F. L. Dimmick, Med. Res. Lab. 10, 174 (1951).

Tansley, L. R.

R. J. Lythgoe and L. R. Tansley, J. Physiol. 91, 427 (1938).

Wolf, E.

E. Wolf and M. J. Zigler, J. Opt. Soc. Am. 49, 394 (1959).

M. J. Zigler and E. Wolf, Am. J. Psychol. 71, 186 (1958).

E. Wolf and A. J. Morandi, J. Opt. Soc. Am. 52, 806 (1962).

Zigler, M. J.

E. Wolf and M. J. Zigler, J. Opt. Soc. Am. 49, 394 (1959).

M. J. Zigler and E. Wolf, Am. J. Psychol. 71, 186 (1958).

Other

M. J. Zigler and E. Wolf, Am. J. Psychol. 71, 186 (1958).

E. Wolf and A. J. Morandi, J. Opt. Soc. Am. 52, 806 (1962).

E. Wolf and M. J. Zigler, J. Opt. Soc. Am. 49, 394 (1959).

J. A. Smith and F. L. Dimmick, Med. Res. Lab. 10, 174 (1951).

S. D. DeGroot, J. M. Dodge, and J. A. Smith, Med. Res. Lab. 11, 11 (1952).

J. Brøns, Acta Ophthalmol. Suppl. 17, 1 (1939).

D. O. Herrington, The Visual Fields. A Textbook and Atlas of Clinical Perimetry (C. V. Mosby Company, St. Louis, Missouri, 1956).

W. J. Crozier and A. H. Holway, J. Gen. Physiol. 22, 341, (1939).

H. Piper, Z. Psychol. Physiol. Sinnesorgane 31, 161 (1903); 32, 98 (1903).

W. J. Crozier and A. H. Holway, J. Gen. Physiol. 22, 361 (1939).

R. J. Lythgoe and L. R. Tansley, J. Physiol. 91, 427 (1938).

D. Katz, Gestalt Psychology, its Nature and Significance (Ronald Press Company, New York, 1950).

G. A. Østerberg, Acta Ophthalm. Suppl. 6, 1 (1935).

S. L. Polyak, The Retina (University of Chicago Press, Chicago, Illinois, 1941).

L. L. Sloan, M. J. Ophthalmol 30, 705 (1947).

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.